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Message-ID: <38ea533d-bae1-4c31-a5d9-bd65bbd98fc7@gmail.com>
Date: Fri, 11 Aug 2023 19:32:14 +0300
From: Péter Ujfalusi <peter.ujfalusi@...il.com>
To: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
Andrzej Hajda <andrzej.hajda@...el.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
Robert Foss <rfoss@...nel.org>,
Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
Jonas Karlman <jonas@...boo.se>,
Jernej Skrabec <jernej.skrabec@...il.com>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Francesco Dolcini <francesco@...cini.it>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
Aradhya Bhatia <a-bhatia1@...com>
Subject: Re: [PATCH 06/11] drm/bridge: tc358768: Use dev for dbg prints, not
priv->dev
On 04/08/2023 13:44, Tomi Valkeinen wrote:
> Simplify the code by capturing the priv->dev value to dev variable, and
> use it.
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@...il.com>
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
> ---
> drivers/gpu/drm/bridge/tc358768.c | 41 ++++++++++++++++++++-------------------
> 1 file changed, 21 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c
> index 0ef51d04bb21..3266c08d9bf1 100644
> --- a/drivers/gpu/drm/bridge/tc358768.c
> +++ b/drivers/gpu/drm/bridge/tc358768.c
> @@ -651,9 +651,10 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
> const u32 internal_delay = 40;
> int ret, i;
> struct videomode vm;
> + struct device *dev = priv->dev;
>
> if (mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) {
> - dev_warn_once(priv->dev, "Non-continuous mode unimplemented, falling back to continuous\n");
> + dev_warn_once(dev, "Non-continuous mode unimplemented, falling back to continuous\n");
> mode_flags &= ~MIPI_DSI_CLOCK_NON_CONTINUOUS;
> }
>
> @@ -661,7 +662,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
>
> ret = tc358768_sw_reset(priv);
> if (ret) {
> - dev_err(priv->dev, "Software reset failed: %d\n", ret);
> + dev_err(dev, "Software reset failed: %d\n", ret);
> tc358768_hw_disable(priv);
> return;
> }
> @@ -669,7 +670,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
> mode = &bridge->encoder->crtc->state->adjusted_mode;
> ret = tc358768_setup_pll(priv, mode);
> if (ret) {
> - dev_err(priv->dev, "PLL setup failed: %d\n", ret);
> + dev_err(dev, "PLL setup failed: %d\n", ret);
> tc358768_hw_disable(priv);
> return;
> }
> @@ -709,7 +710,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
> data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
> break;
> default:
> - dev_err(priv->dev, "Invalid data format (%u)\n",
> + dev_err(dev, "Invalid data format (%u)\n",
> dsi_dev->format);
> tc358768_hw_disable(priv);
> return;
> @@ -733,65 +734,65 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
> dsibclk);
> dsiclk_nsk = (u32)div_u64((u64)1000000000 * TC358768_PRECISION, dsiclk);
> ui_nsk = dsiclk_nsk / 2;
> - dev_dbg(priv->dev, "dsiclk_nsk: %u\n", dsiclk_nsk);
> - dev_dbg(priv->dev, "ui_nsk: %u\n", ui_nsk);
> - dev_dbg(priv->dev, "dsibclk_nsk: %u\n", dsibclk_nsk);
> + dev_dbg(dev, "dsiclk_nsk: %u\n", dsiclk_nsk);
> + dev_dbg(dev, "ui_nsk: %u\n", ui_nsk);
> + dev_dbg(dev, "dsibclk_nsk: %u\n", dsibclk_nsk);
>
> /* LP11 > 100us for D-PHY Rx Init */
> val = tc358768_ns_to_cnt(100 * 1000, dsibclk_nsk) - 1;
> - dev_dbg(priv->dev, "LINEINITCNT: %u\n", val);
> + dev_dbg(dev, "LINEINITCNT: %u\n", val);
> tc358768_write(priv, TC358768_LINEINITCNT, val);
>
> /* LPTimeCnt > 50ns */
> val = tc358768_ns_to_cnt(50, dsibclk_nsk) - 1;
> lptxcnt = val;
> - dev_dbg(priv->dev, "LPTXTIMECNT: %u\n", val);
> + dev_dbg(dev, "LPTXTIMECNT: %u\n", val);
> tc358768_write(priv, TC358768_LPTXTIMECNT, val);
>
> /* 38ns < TCLK_PREPARE < 95ns */
> val = tc358768_ns_to_cnt(65, dsibclk_nsk) - 1;
> - dev_dbg(priv->dev, "TCLK_PREPARECNT %u\n", val);
> + dev_dbg(dev, "TCLK_PREPARECNT %u\n", val);
> /* TCLK_PREPARE + TCLK_ZERO > 300ns */
> val2 = tc358768_ns_to_cnt(300 - tc358768_to_ns(2 * ui_nsk),
> dsibclk_nsk) - 2;
> - dev_dbg(priv->dev, "TCLK_ZEROCNT %u\n", val2);
> + dev_dbg(dev, "TCLK_ZEROCNT %u\n", val2);
> val |= val2 << 8;
> tc358768_write(priv, TC358768_TCLK_HEADERCNT, val);
>
> /* TCLK_TRAIL > 60ns AND TEOT <= 105 ns + 12*UI */
> raw_val = tc358768_ns_to_cnt(60 + tc358768_to_ns(2 * ui_nsk), dsibclk_nsk) - 5;
> val = clamp(raw_val, 0, 127);
> - dev_dbg(priv->dev, "TCLK_TRAILCNT: %u\n", val);
> + dev_dbg(dev, "TCLK_TRAILCNT: %u\n", val);
> tc358768_write(priv, TC358768_TCLK_TRAILCNT, val);
>
> /* 40ns + 4*UI < THS_PREPARE < 85ns + 6*UI */
> val = 50 + tc358768_to_ns(4 * ui_nsk);
> val = tc358768_ns_to_cnt(val, dsibclk_nsk) - 1;
> - dev_dbg(priv->dev, "THS_PREPARECNT %u\n", val);
> + dev_dbg(dev, "THS_PREPARECNT %u\n", val);
> /* THS_PREPARE + THS_ZERO > 145ns + 10*UI */
> raw_val = tc358768_ns_to_cnt(145 - tc358768_to_ns(3 * ui_nsk), dsibclk_nsk) - 10;
> val2 = clamp(raw_val, 0, 127);
> - dev_dbg(priv->dev, "THS_ZEROCNT %u\n", val2);
> + dev_dbg(dev, "THS_ZEROCNT %u\n", val2);
> val |= val2 << 8;
> tc358768_write(priv, TC358768_THS_HEADERCNT, val);
>
> /* TWAKEUP > 1ms in lptxcnt steps */
> val = tc358768_ns_to_cnt(1020000, dsibclk_nsk);
> val = val / (lptxcnt + 1) - 1;
> - dev_dbg(priv->dev, "TWAKEUP: %u\n", val);
> + dev_dbg(dev, "TWAKEUP: %u\n", val);
> tc358768_write(priv, TC358768_TWAKEUP, val);
>
> /* TCLK_POSTCNT > 60ns + 52*UI */
> val = tc358768_ns_to_cnt(60 + tc358768_to_ns(52 * ui_nsk),
> dsibclk_nsk) - 3;
> - dev_dbg(priv->dev, "TCLK_POSTCNT: %u\n", val);
> + dev_dbg(dev, "TCLK_POSTCNT: %u\n", val);
> tc358768_write(priv, TC358768_TCLK_POSTCNT, val);
>
> /* max(60ns + 4*UI, 8*UI) < THS_TRAILCNT < 105ns + 12*UI */
> raw_val = tc358768_ns_to_cnt(60 + tc358768_to_ns(18 * ui_nsk),
> dsibclk_nsk) - 4;
> val = clamp(raw_val, 0, 15);
> - dev_dbg(priv->dev, "THS_TRAILCNT: %u\n", val);
> + dev_dbg(dev, "THS_TRAILCNT: %u\n", val);
> tc358768_write(priv, TC358768_THS_TRAILCNT, val);
>
> val = BIT(0);
> @@ -805,10 +806,10 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
> /* TXTAGOCNT[26:16] RXTASURECNT[10:0] */
> val = tc358768_to_ns((lptxcnt + 1) * dsibclk_nsk * 4);
> val = tc358768_ns_to_cnt(val, dsibclk_nsk) / 4 - 1;
> - dev_dbg(priv->dev, "TXTAGOCNT: %u\n", val);
> + dev_dbg(dev, "TXTAGOCNT: %u\n", val);
> val2 = tc358768_ns_to_cnt(tc358768_to_ns((lptxcnt + 1) * dsibclk_nsk),
> dsibclk_nsk) - 2;
> - dev_dbg(priv->dev, "RXTASURECNT: %u\n", val2);
> + dev_dbg(dev, "RXTASURECNT: %u\n", val2);
> val = val << 16 | val2;
> tc358768_write(priv, TC358768_BTACNTRL1, val);
>
> @@ -902,7 +903,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
>
> ret = tc358768_clear_error(priv);
> if (ret) {
> - dev_err(priv->dev, "Bridge pre_enable failed: %d\n", ret);
> + dev_err(dev, "Bridge pre_enable failed: %d\n", ret);
> tc358768_bridge_disable(bridge);
> tc358768_bridge_post_disable(bridge);
> }
>
--
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